WorksheetsAcid-Base Theory
Total questions: 13
Worksheet time: 7mins
In the reaction:
HCO31– + H2O ↔ CO32– + H3O+
the hydrogen carbonate ion (HCO31–) is acting as a ___.
acid
base
indicator
conjugate
Identify the acids involved in the equilibrium reaction:
CN– + H2O ↔ HCN + OH–
CN– and H2O
H2O and HCN
CN– and OH–
H2O and OH–
Which of the following represents a conjugate acid-base pair?
SO32– : SO2
CO32– : CO2
H3O+ : H2
NH4+ : NH3
Arrhenius acids __________.
dissociate to make H+ ions in solution
dissociate to make OH- ions in solution
are proton acceptors
have pH values higher than 7
Bronsted-Lowry bases ___________.
dissociate to make H+ ions in solution
dissociate to make OH- ions in solution
are H+ donors
are H+ acceptors
Which of the following is an Arrhenius base?
HNO3
NH3
CsOH
HC2H3O2
Which of the following products would result from NH3 acting as a bronsted base when reacting with water:
NH3 + H2O --> ____________
NH4 + OH
NH4+ + OH-
NH2 + H3O
NH2- + H3O+
An Arrhenius base:
donates H+
accepts H+
produces H+
produces OH-
An Arrhenius acid:
donates H+ to another substance
accepts H+ from another substance
produces H+
produces OH-
What is being donated/accepted between conjugate acid-base pairs?
a hydrogen (H+) ion
a hydroxide (OH-) ion
water
a neutron
A Bronsted Lowry base:
donates H+ to another substance
accepts H+ from another substance
produces H+
produces OH-
What is the conjugate base in the following reaction?
HCO3-
HCl
H2CO3
Cl-
